Electric toothbrush



FIG. 1 is a perspective view of an electric toothbrush showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is an enlarged top view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the electric toothbrush that form no part of the claimed design. The bottom of the electric toothbrush is not illustrated as it forms no part of the claimed design. 

CLAIM The ornamental design for an electric toothbrush, as shown and described. 